Book-holding copyholder



T. H. BISHOP.

BOOK HOLDING COPYHOLDER.

APPLICATlON FILED OCT. 16. 1920. 7 1 42 937 Patented Sept. 12, 1922.

' 4 SHEETSSHEET 1. 5 1

INVENTOR. 7 /20/110; Hfll/fiil/vp III "III lllllllllllll llllll lull llllll T. H. BISHOP.

BOOK HOLDING COPYHOLDER.

APPLICATION men OCT. 16, 1920.

Patented Sept. 12, 1922.

4 SHEETS-SHE 2 mp mm H m 7%) ATTORNEY T. H. BISHOP. BOOK HOLDING COPYI-IOLDER.

APPLICATION FILED OCT. I6, 1920. Q

' Patented Sept. 12, 1922.,

4 SHEETS-SHEET 3 I N VEN TOR? I .g in ATTORNEY T. H. BISHOP.

BOOK HOLDING COPYHOLDER.

. APPLICATION FILED OCT. 16, 1920. 1,428,937.

Patented Se t. 121922,

4 SHEEIS-SHEEII 4 IN VEN TOR. 700mm Bab/hop Patented Sept. 12, 1922.

UNITED" STATES PATENT OFFICE.

THOMAS H. BISHOP, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE LINE-A-TIME MFG. 00., INCL, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

BOOK-HOLDING COPYHOLDER.

I Application filed October 16, 1920. Serial No. 417,374.

To all whom it may concern Be it known that I, THOMAS BISHOP, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Book- Holding Copyholders; and I do hereby declare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawings, forming a part of this specification, and to the reference numerals marked thereon.

My present invention relates to copyholders and more particularly to that type of copyholder adapted tobe used in connection with and to stand in rear of'a type writer and embodying an uprightfraine carrying a copy plate and a line indicator movable relatively to each other to progressively indicate the lines of thecopy 'and the invention has for its object to provide a copyholder of this character fitted to accommodate heavy books and to indicate the printed lines thereof, the improvements being directed in part toward rendering such device simple, durable and convenient to operate. A further object of the invention is to provide an improved clutclrmechanism for raising the copyplate relatively to the line indicator, this being necessitated by the weight of the book. To these and other ends the invention resides in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings: I

Figure 1 is a front view of a bookholding copyholder constructed in accordance w th and illustrating'one embodiment of my invention;

Figure 2 is a rear view thereof;

Figure 3 is a top view;

Figure 4 is a side view;

Figure 5 is a vertical central section taken from front to rear of the machine;

Figure 6 is a horizontal section on the line 6-6 of Figure 5.

Figure 7 is a front View of a clutch-mechanism and a fragment of the frame with the copy plate removed, and

Figure 8 is an enlarged detail view llustrating in section on the line 8-8 of Figure 2, an adjustable stop for the elevating mechanism.

' wardly toward its gripping position.

Similar reference numerals throughout the several views indicate the same parts.

Referring first more particularly to Figures l, 2 and 4, the copyholder shown is of a familiar general type embodying an upright reenforced stamped metal frame 1 adapted to stand at the rear of the typewriter and supported by a side arm 2 connected to its bottom rail 3. A forwardly and rearwardly extending operating lever 4 pivoted at 5 to the side arm is connected at its rear end at 6 to a transversely extending, actuating lever 7 pivoted at 8 on the interior of the frame 1. A spring 9 shown in dotted lines in Figure 1, tends to hold the lever 7 in a lowered position and hence the handle portion of the operating lever 4 in an elevated position. Depressing this handle portion raises the actuating lever -7 and with it a clutch rod 10 pivotally connected thereto at 11, also as shown in dotted lines in Figure 1.

The upper end of this clutch rod 10 is shown in Figure 7, together with a portion of a lifting rod 12 guided in frame 1 and fixed as by the nut 13 shown in Figure 2 to a copy plate 14 movable vertically on guide rods 15 fixed in the frame. Referring now principally to Figure 7 the lifting rod 12 is surrounded by a tilting friction lifting clutch 16. having interlocked therewith a pair of notched friction shoes 17 engaging on opposite sides of the rod and at the other end the clutch embraces the clutch rod 10 which has a fulcrum pin 18 on which the clutch plate rests loosely. At each actuation of the operating lever 4 whereby the clutch rod 10 is raised as before explained, the clutch 16 binds upon the rod 12 and raises the copy plate to which it is attached, a corresponding distance, the bent-over end 19 of the clutch rod preventing the clutch from binding in an upward direction. When so raised, the copy plate is retained in elevated position during the return downward movement of the clutch l6 and rod 10 by a clutch plate 20 fulcrumed at 21 on an ear struck from the sheet material of the frame 1 and similarly provided with friction shoes 22 engaging the rod 12. A coil spring 23 connected to the ear 21 and to an intermediate portion of such clutch tilts the latter down- The opposite end. of the clutch plate straddles I in thepresent form of aset screw .27. Its

other end is slotted at 28 .and rests on ayoke 29 carried by, a collar, 30 onv a tension rod 31 longitudinally adjustable in'a bracket v32 by means of a nut'33 threaded on the rod and bearingagainst the top of the frame 1. A spring 34 acting against a washer 35 on the lower, end'of, the rod tends to draw it downwardly subject to the adjustment of the nut 33. A spring 36 interposed between beam25 and the upper bracket arm 32 holds the beam upon theyoke 29 and disposed'at such an angle with reference tothe lifting rod 12 as will normally permit the rod to slip through the brake with little ornoresistance therefrom. j Y Y t The copy Iplate'falls or is returned by gravity when; the clutches16 and are released. This is caused by lifting up on the operating lever 4 which reverses the movement of the clutchrod-10 causing it to successive lines-of the copy with a step-bystep motion, the indication being made by move downwardly. This trips the lifting clutch =16 by straightening it outon top of the frame 1. Also, a pin '37 on the clutch rod depresses theright hand endof the brake beam 25 .causingit to'tighten at 26 against the lifting rod 12 immediately or with a delayed action, according to the initial-angle of the beam as adjustedbythe nut 33; Thereforethe strength- 0f the lifting pressure on theoperating lever 4 determines the extentto which. the brake will be applied. I

As the brake beam is depressed in this manneryit straightens out and releases the holding clutch 2O duetothe pressure of the set screw 27 on the free end-of clutch 20 which ispressed down against the ear-24 and its inoperative 1 position: thereby dc termined. I

The copy. plate is thusfraised to indicate a line indicator 38 carrie'd on a bail3'9:having bearings in the. frame at 40 (seeF1gure 7). The lineindicator-may be adjusted in its bearingsup andv down, in frontof the copy plate and "toward andfrom it. to a limited extent, but otherwise the copyholder operates upon the principle of a fixed line -indicator and movable copyplate. The extent to which the copy plateis lifted upon each depression ofthe operating lever '4 is limitedlby the; device shown indetail in Fi'gure 8. The lowere iid ofthe clutch rod 10,

42ar1dheld against the back of the frame 1.

back plate 1 --'of the frame also extends through the slot 42 and engages a nut 44 held against "turning by a flange plate 45 .clamped between the plate 41 and its support. By loosening and tightening this bolt through the use of a knurled head 46 thereon projecting at the back of the machine as shown in 'Figure 2, the shoulder 40 may be adjusted to allow greater or less throw of theclutch rod '10. I I I The clutch mechanism above described, together "withthe brake acting in conjunction therewith, provides a strong and serviceable elevating mechanism for copy so heavy as a book and one which insures a gradual and noiseless descent of the copy plate when released. The'book isheld upon the copyplate in the following'mannerz Referring more {particularly to Figures 1 and "5, I provide centrally on the copy plate near its bottom a raised slotted guide 47 in'which is secured for vertical adjustment by 'abolt 48 and thumb nut '49 :a slide 50 carrying a horizontally or forwardly and outwardlylprojecting standard 51. "In a similar position at the top of the copy-plate I provide a vertically adjustable slide 52 slotted at 53 to guide u'-on'headedpins"54. Another pin 55911 'the 's lide' occupies a segmental cam slot 56 in a lever-pivoted 'at 57 to aIplate 58 that carries the slide which lever has an operating handle 59. By means of" this member 59 the slide 52 may be raised and lowered (it'being in its low position in Figure 1) 'for which purpose the cam provides a very 'fineor sensitive adjustment. It willbe noted that the lower slide 50 and standard "51 has a similar though coarser adjustment and one of greater extent. Pivoted at 6O upon each of the standards 61 carriedbythe upper slide 52 and 51 carried by the lower slide are a pair of equalizing beams 62 and at their opposite ends these beams are pivoted at to a pair of clips*'64 consisting of metal plates having downwardly turned hooks '65 at their upper ends and upwardly turned hooks 66 at their lower ends. E'ach clip or plate isextensible beingmade in two partsthat slideupon each other, one being slotted as shown in dotted lineslat 67 in Figure 1, and the other being provided with a headed pin 68 slidablein the slot, together'with'centeringprojections' 69 struck up from the'plate. Thus,the clips" are extended-and contracted asthe slides-50 -;and '52 areimovefd toward and from each"other. The lower'stafndard the clips 64 to which it is pivoted'at 72 for engaged over the top and bottom edges'of each cover and because of the pivoted mounting of-the clips, 'they'respectively advance or recede from the'face of thecopy plate to bring both pagesin the same plane whether the book is opened in the middle or elsewhere. To adjust' the holdingv devices for the'reception of the hook, the lower standard 51 and slide 50'are-first' adjusted to bring the hooks 65 and 66 of the clips substantiallytheproper distance apart to admit the book with the slide 52 at the top raised. The lever 59 is then moved to the position of Figure 1 carrying the upper slide 52 downwardly and clamping the upper hooks 65 against the cover edges, the lower edges of the covers having been preliminarily rested in the hooks 66.

The line indicator 38, is, of course, disposed across the face of the book as shown in Figure l, with the book between it and the copy plate. It is desirable to provide means for holding the leaves of the book fiat to keep them free of the line indicator and for this purpose I have disposed transversely across the face of the copy plate between the upper and lower clip carrying guides, a reenforcing plate 7 3 carrying headed pins 74 upon which are guided slide bars 75. Pivoted at 76 at the center of the plate 73 is a lever 77 having pivots 78 at its upper and lower ends by means of which links 7 9 connected through other pivots 80 with the slide bars 75 so that these have joint outward and inward movement at the respective sides of the copy plate. At their outer ends the slide bars 75 have pivoted thereto at 81 forwardly extending arms 82 to the forward ends of which are pivoted at 83 inwardly turned arms 84 carrying fingers 85 tipped with rubber at 86 to engage the margins of the leaves of the book. The adjustments of the slides 7 5 are to take care of books of different widths and the arms 84 are normally pressed inwardly to cause the fingers 85 to grip the face of the book by springs 87, connected to they arms 8d at one side of their pivot and carried by the arms 82. The spring is so arranged that the arms 84 may be swung out to clear the book in adjusting it in place until such arms 84 are practically in continuation of the arms 82, the pull on the springs 87 being then on a dead center with respect to the pivots 83.

With a bookholder of the character described, legal and similar heavy books can be securely arranged on the copyholder and raised and lowered with certainty and without noise. To turn the pages, it is only necessary to manipulate the finger 85, as the book is held by its covers and not by its pages.

I claim as my invention:

1. In a 'bookholding copyholder, the combination with a frame, a copyplate and a line indicator thereon and means for operating one of said elements relatively to the other, of a pair of standards on the copy plate, a pair of bookholding clips arranged between the line indicator and plate and equalizing beams supporting the clips and mounted on the standards.

In a bookholding copyholder, the combination with a frame, a copyplate and a line indicator thereon andmeans for operating one of said elements relatively to the .other,.of a pair of standards on the copy plate, a pair of extensible book holding clips arranged between the line indicator and plate, equalizing beams supporting the clips and mounted on the standards, and means for adjusting the latter relatively in a direction longitudinally of the clips.

3. In a bookholding copyholder, the combination with a frame, a copyplate and a line indicator thereon and means for operat ing one of said elements relatively to the other, of a pair of standards on the copyplate, a pair of extensible book holding clips arranged between the line indicator and plate, equalizing beams supporting the clips and mounted on the standards, and means for adjusting the latter relatively in a direction longitudinally of the clips, comprising a slide upon which one of the standards is carried and a cam lever pivoted to the plate and cooperating with the slide.

4. In a bookholding copyholder, the combination with a frame, a copyplate and a line indicator thereon and means for operating one of said elements relatively to the other, of a pair of standards on the copy plate, a pair of extensible book holding clips arranged between the line indicator and plate, equalizing beams supporting the clips and mounted on the standards, and means for adjusting the latter relatively in a direction longitudinally of the clips, comprising slides upon which the standards are respectively carried, one of said slides having a coarse adjustment embodying a releasable clamping means and the other a fine adjustment embodying a cam lever pivoted to the plate and cooperating with such slide.

5. In a bookholding copyholder, the combination with a frame, a copyplate and a line indicator thereon, and means for operating one of said elements relatively to the other, of a pair of standards on the copy plate, a pair of bookholding clips arranged between the line indicator and plate and supported on the standards, guides on the plate beneath the clips extending transv-ersely thereof-,' and spring actuated leaf holder's operating in the 'guides and connected for joint movement.

6. In a bookholdin'g"copyholder, the combination with a frame, a 'copyplate and a line indicator thereon," and means fortopei'ating one of saidelements relatively-t0 the other, of a pair of'standard's on the=copy plate, a pair of book holdin'g clips arranged between the line indicator and plate and supported on the standards, guides on they plate beneath the clips extending transversely thereof, slides operating in the guides, 'a link mechanism connecting the slides for joint movement in opposite directions and spring actuatedle'a f holding arms carried by the slides.

7. In-a copyholder, the oombination'=with ing t'he mod and separate friction {shoes interl'ocked with "the clutch plate and a'fl'iC- tion-allyengaging 1 opposite-sides of :the mod. '8. In :a i'copyhol dierythe comblnatlon with an upright supporting frame, and a eopyplate movablefithereon and :proVided with a ilifting rod, of elevatingsmechanis'm --em-' bodying a lifting clutch and %a holding clutch, 'a :cluth rod-"carrying :the lifting clutch and :a brake meohanism --.ojperatedq-hy a reversalrof the clutchrodfind' through the medinmiofwhichfbrake,niechanismtheholdilng ,clutchtis released by such reversal.

' .f-THOMAS HL-BI-SH-OP. 

